In a somewhat surprising report, The U.N. Environment Programme says one of the most promising green industries -- at least when it comes to creating economic growth, reducing poverty, fueling job creation and addressing major environmental challenges -- turns out to be tourism.

Aerospace is an intensely nationalist business. But not only do aircraft makers get tied up in international political battles, such battle lines are drawn between states as well. Witness the just-completed competition between blue state Boeing and red state Airbus.

The World Trade Organization has supported the Obama administration's decision in September 2009 to enact tariffs on Chinese tires imported to the U.S. The WTO said the president's claim that such imports disrupted the domestic tire market was warranted.